marshals and the fbi. attention now turned to the young man who had been living at brittany's house, the one she had been showing off at the beach club, 26-year-old joe roberts. seems joe had left around the same time brittany disappeared. and police now had to consider a possibility that brittany had simply washed her hands with the feud with ann lydon and taken off on a cross-country trip for young joe. for justine griffin, that only made the story more interesting. >> living in her house for free. >> makes you think. >> they thought maybe the two of them had just left, just gone on a trip together, just left town. >> really, it was all speculation. in fact, nobody had a clue what those two did. and then another lucky break, or it seemed lucky. the good news in mid july, police found out that just four days after brittany vanished, a cop stopped her toyota on a highway out west, but brittany wasn't driving. joe was. >> july 11th, roberts is actually stopped by police in wyoming for speeding. >> the bad n